Molding apparatus for concrete articles



May 25, 1926.`

1,585,785 w. c. PARMLEY I MoLDINs APPARATUS xo CONCRETE ARTICLES Filed March 1, 1924- 2 Sheets-Sheet 1 May 25 13926.l

f v 1,585,785 w. C.'PARMLEY l MLDING APPARATUS FOR CONCRETE ARTICLES Fileq March i. 1924 2 shets-sheet 2 lll ,lv-[Z7 i iwi Patented May 25, 1926.

UNITED STATES WALTER c. PARLY, or urrnnn'onrcrnn, Nnw Jnnsnr.

vronnn APPARA'rus Fon lcenenerr: RTILES.

Application inea natali 1, 19241. serial ms. 'eee-,133.

The present invention relates-to a `machine having movable parts to 'which may be attached parts of molds more particularly desi -nedfor molding concrete articles.

The ob]ect of the invention-is to prodnce a machine or apparatns which may carry mold parts and be manually operated, so thatv parting or the mold With respect to the molded article may be accomplished in a manner to give clear clean snrraces tothe article being molded. to permit the use of a cement mixture having greater tvat'er content than can be used'in connection With hand molding operations, to speed up operation over that attainable by vhand operation, and thus on the Wholefto produce a stronger concrete article and a V'more perrectly molded one in a shorter space of time.

Another Objecty of theinvention isto'provide a machine or such character thatr mold units of different sizes may be utilized in the machine thn's permitting with the one machine a variety of moldv sizes to be used,' and saving the expense of providing a molding machine for each size of article to be molded. i i

Further objects or the invention will be noted as the description of the apparatus proceeds.

Reference should be had to the accompanying drawings forming parts or the speciiication, in which Fig. 1 is a perspective View showing the machinein open position; Fig. 2 is an end elevation With the apparatus in closed position; Fig. 8 is ay top plan View with a pallet board in place thereon; Fig. 4 is' a side-elevation of the apparatus in closed position and havingthe position of the swingable members indicated in their open position; Fig'. 5 is a perspective vien.T 'showing the machine in closed position with a mold in position upon the pallet board. Fig. 6 is a perspective view showing the apparatus in open position and with the swingable members carrying the parts or the mold. l

Referring to Fig. 1,- the apparatus cernprses a rectangular tap frame member comprising the side pieces 1 and 2 and the i end pieces 8 and 4. mounted upon legs 5, 6, 7 and 8, and it will be noted that the end members 3 and 4 or the top frame portion are set in vwith respect tothe side members l and 2 substantially the depth ofthe legs, as for instance irill be clearly seen in F ig. 1 in Consideringthe legs 6 and 7.

tions are `joined by suitable connecting members, such for instance, as the member Qshown in Fig. 1.

The construction Which has thus been described isme'r'ely frame upon Which the swingable members thatlare-to be described may be pivotally mounted. v

At veach end .or the machine there 'are mounted two swingable members Which may be generally represented bythe reference characters 10, 11. The svvingable member ll comprises'two side members`12 and it-Which at their lower ends are piv- The top frame is The legs 5, 6; 7 and 8 at the bttom pory oted upon a transversely extending bar or This rod or bar'14 extends through the vlegs 6 and 7 adjacent the lower portions thereof, and when the members 12 and 13 are 'swung into Avertical' position these side members engage with the inner surfaces of thelegs 6 and 7 and abut against the c'ross lmember 4 or the frame which has before been described. These members V11 and 12attheir upper ends arev connected by a transversely' Vrod the'end owvhic-h is indicated 'at.14.rv

ment of the' member 11. vThe rods lti'and 17 extend through openings in the crossmember 4,- morek particularly shown 1n F11". 15

vand the nuts' 18 "Wlith ete-en the'insi -e er this cross member 4 serve as stop members for the rods with respect to the member 4, while the nuts 18 which are on the opposite ends of the rods 16, 17, serve as stop'members for the side members 12, 13 of the member 11. At the opposite end of the frame to that which has been described there is the swinging member 10 which comprises the side members 19, 20, which side members at their outer ends are joined to each other by means of a transversely extending member 21, this being a connection which rigidlywholds and spaces the members 19, 20.

At their lower ends the members 19, 2O are mounted on a transversely extending rod 22 which extends between the legs 5 and 8 so that this member 10 as a whole may'swing into a vertical position or into an inclined position, as shown in Fig. 1.

Pivotally connected to approximately the mid-position of the side member 19 is a lever `23.

Connected to theside member 12 of the swinging member 11 is a lever 24 which is of equal length with the lever 23. These levers 3, 24, are connected at their inner ends to a pin 25. There is also pivotally connected with the pin 25 a lever 26 which at its opposite end is pivotally connected with the rod 14. The position of the levers 23, 24, and 26 in their open position is shown in Fig. 1 of the drawing, while the position of the levers when the swinging members 10 and 11 are in vertical position is shown in Fig. 4.

1t will be seen that because of the connection between the swinging members 10 and 11 through the levers 23, 24, one will move whenever the other movable member is moved, as ttor instance, by the operator or". the machine.

Assuming that the swinging members 10 and 11 are in theposition shown in F ig. 4, that is to say, in upright position, if the memberll be moved toward its open position the member 10n'ill first move backwardly to approximately the position indil ance so that when a formed concrete article is lifted out of the machine it may easily clear the swinging member 11.

1t will be understood that the lever mechanism23, 24 and 26 is duplicated on the opposite side ot the machine, so that the swing` ing members 10 and 11 are guided at both ot.

their sides simultaneously.

In Figs. 5 and 6 the machine is shown with mold members' attached thereto. It will be understood that these mold members are but illustrative of any kind of mold members that may be used, and their description in this specification is not intended to be limiting in any Way. As shown, the swinging member 10 carries a half of a mold, indicated at 29, which is rounding in contour, and has a front portion 30 which carries a part 31 to receive a locking member.

The swinging member 11 receives a halt Amold-32 which is rounding in character.

One end is provided with a part 83 to receive a clamping member carried by the end of the mold member 29, which end is obscured in the showing in Fig. 6. The mold member 32 has a swinging portion 34 which carries a pivoted locking member 35.

There is shown in Figs. 5 and 6 a pallet board which is indicated at 36. rIhis pallet board may be supported upon the end members of the frame, and when the mold is closed, as shown in Fig. 5, the pallet board forms a closure for the lower end of the mold. The cementitious molding material may be illed in the mold and properly tamped, and immediately the mold may be opened in the manner whichhas before been described, whereupon the workmen may litt the pallet board 36 toward the swinging member 11 which will be insuiiieiently low position to enable the pallet board to move over the top thereof.

Attention is called to the fact that when the swinging member 11 is moved by an operator and it causes the simultaneous movement ot the swinging member 10, that both of the mold members in leaving the pallet have a combined upward and backward movement with respect to the molded article, and the mold n'iembers leave the surface ot the molded article at precisely the same instant. This is important in that it reduces any suction between the moist walls of the concrete article and the mold, and the mold Sections instead of having a pulling action which might tend to pullfparticles of the concrete out, have such an action by the combinedV movement which has been described, that they leave the walls of the concrete article with a clean surface.

The above described feature ot the molding machine is important from another standpoint in that a wetter concrete can be used lthan is possible with straight hand molding. The wet concrete is desirable to be used in that it produces a concrete article of maximum strength, which is ot' course desirable.

An additional advantage in the machine which has been described lies in the fact that the mold sections are not man-handled, but being mounted as they are and movable as they are, are much more readily manipulated than would be the case by dlin'g.

In the event that the concrete article .being produced is cored out, it is of course necessary to provide a core which may be operated and withdrawn from the molded article when it is in the machine.

There is shown in the drawings a construction in connection with the machine which has been described by which a raising and lowering table which may carry a core may be provided. rlhis table is indicated at 36a, and is supported upon two sets of toggle members; the sets at each end of the table member 36a being the same a description of one will suiiice for both.

On the under side of the table there are pivotally connected double link members 37 and double link members 38. l At the lower ends of these double link members there are man hanvpivotally connected single link members 39 out, as indicated at 36", and co-operating.

with each notched out corner is a guide bar such .as indicated at 44, so that the vertical iiiovenient of the table 86a is guided by the tour guide bars which have been mentioned. It will of course be readily understood that the table 3G need only be used in the event that the molded article is cored out.

Having described my invention, l claim l. A molding apparatus for concrete articles con'iprising a trame, a pair of oppositely disposed moving .members connected :tor simultaneous movement in opposite directioiis, means connecting said members whereby the movement of one causes the movement ot' the other, coinplemental mold sections carried by said members, each section having a side member attached to one oit' said swinging members and an end member hinged to the said side member, and means for securingthel hinged end member to each section to the attac-lied side member of the other.

2. A. molding apparatus tor concrete ar- Jticlcs comprising a frame, a pair of oppositely disposed vertically swinging members connected for simultaneous movements in opposite directions, means connecting said members whereby the movement of one causes the movement of the other, complemental mold sections carried by said members, each section having a side member attached to one of said swinging members and yan .endmemb'c'r hinged to the said side-ineinber, and means carried by the mold sections for detacliably securing `the hinged end member of each section to the attacliedside member of the other section.

A molding apparatus for concrete articles comprising a frame adapted to support a pallet board, a pair of oppositely disposed swinging members which are pivot-ally mounted upon said frame and which swing inwardly toward thepallet board, which swinging members are adapted to carry mold sections, means connecting said members whereby the movement of one of said members causes the movement of the other, and means tor controlling the movement` of said connecting means to cause one of said` members to have a greaterangular movement away from the frame than the other of said members.

4. A molding apparatus for concrete articles comprising a frame, a pair of oppositely disposed swinging members adapted to carry moldsections, said members being pivoted to the traine at opposite sides thereot, means connecting the said swinging members whereby the movementl of one swinging member controls the movement of the other, means controlling the movement of the connectingineans to cause the swinging members to swing apart and'then to swing simultaneousiy in the same direction, and means for limiting the movement of one of the swinging members.

5. A molding apparatus for concrete articles comprising a frame, a pair of oppositely disposed swinging members adapted to carry mold sections, a lever pivotally convnected with one vof said swinging members above its pivot point, a lever pivotally connected to theV other of said swinging members above its pivot point said lever members being pivotally secured to each other, a third lever member pivotaliy secured to the two first mentioned levers at their point of pivot and said third pivot member beingV alsopivotally mounted upon the frame, and means for limiting the swinging movement of one of saidV swinging members.

6. A molding apparatus for concrete articles comprising a frame adapted to support a pallet board, a pair of opposed vertically Y swinging members pivoted to the frame below the top thereof and adapted to carry mold sections, toggle connecting the swinging members and means for shifting the pivot of the togglek vertically and latorally.

i. A molding apparatus tor concrete articles comprising a trame adapted to support a pallet board, a pair of opposed vertically swinging members pivoted to the frame below the top thereof and adapted to carry mold sections, a toggle connecting the swngng members and an operating lever pivotecl to the frame and to the pvot of the toggle.

8. A molding apparatus for concrete artcles comprising a frame adapted to sup'- port a pallet board, :L pair of opposed vertically swinging members pvoted to lche frame belon1 'che top thereof and adapted to carry molclrseetons, a, toggle connecting the Swinging members, means for shifting the 10 pivot of the toggle vertically and laterally, and means for limiting the swinging movemenlJ olf one of said Swinging members.

In testimony whereof, I hereunto ax my signature.

YVALTER C. PARMLEY. 

